Lathe and shaper tool holder



CLI.. SHEPARDSON.

LMHE ANUSHAPER Tom HOLDER.

APPLICATION FILED NAR. I8. 1920.

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: Be it knownthat I, CLYDE L. SHnrAnDe` s oN, a citizenof theUnited States, residing at Ionia,.in the countyof Ioniaand State.- of Michigamhave inventedwcertain new and useful Improvements in Lathe and ShaperV ToolvH'olders, of which the following is a specication. f

tool holders and the'principal: object thereof is to provideia tool holder which is adjustfv able and reversible 'softhat many different types of machine tools may be held therein. In order to clearly define the objects and construction of the present invention it is pointed out that heretofore different tools have necessitated the utilization of different tool holders such as straight shank, left hand and right hand off-set, left hand and right hand straight shank and turning tool, round cutting tool holder, thread tool, left hand side tool and many others. The present tool holder is designed to securely and firmly grip tools which widely vary in type so that the usual loss of time and additional labor in changing tools and tool holders will be eliminated. e

Another object of the invention is to provide improved vand reversible means for clamping atool in the holder so that a number of tools of different sizes and shapes may be rigidly held therein.

For the purpose of illustrating this invention, there is shown in the accompanying drawing one form thereof which is at present preferred, since the same has been found in practice to give satisfactory and reliable the various instrumentalities of which the invention consists can be variously arranged yand organized and that the invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

in the drawing: Y Y

Figure l is a side elevation of the invention.

Fig. l2 is a top plan view of the same showing a tool clamped therein.

Fig. 3 is a top plan view of the tool holder with the clamping block removed.

Like characters of reference indicate like or similar parts throughout the several views of the drawings in which:

a; designates the shank of the tool holder which is designed to be gripped in the tool )to permit the stud to l Specificatohof LettersPatent.iV Pfentedllua'h 1921.` :Appiioationniea Marchiis, 1920. `sern11.1 v`0.rae-6,882.g y A post, of a Shaper or-lathe and B- is-the sub-f stantially :rectangular head portion thereof Y' which .is provided with a serrated-clamping face l. `Extending centrally through :the headkB isran opening2 in threadedshank 3.01:' va StudA: is retained.

Theolampinggmember C is provided with Y i; an openingthrough-whichtheshank 3 of This invention relates to improvements 1n'` thek stud- 4 kentends 'and has ,formed thereon Vwhich the screw;`

rection Ito. each otherv from opposite ends offv the clamping-member. Theselblocks are :des

signed to balance the other end of the clamp when a tool is in the holder'and are of different sizes as is shown clearly in F ig. 1y so that the clamp may be reversed to adapt' it for use with different sized tools. The inner faces of the blocks are cut away as at 7 be 'inserted through the opening 5 and screwed down to securely clamp a tool D in place, as is illustrated in s' illustrated in dotted lines in Fig. 2 a number of different types of tools may be held at varying angles by the'present tool clamp,l and the peculiar formation of the clamping member, which is reversible, permits of using the tool holder with many of the types of tools which at present necessitate different types of tool holders; In order to prevent the shank of'tools from engaging the shank of the tool holder, the tool holder is cut away as at 8 to permit passage of the Shanks of tools thereby Yand also to prevent engagement of the tool Shanks with the tool holder when the shank of the tooly lies adjacent thereto.

is inserted under the outward facing block 6 while the other block 6 engages the head B of the tool holder and balances the clamp, the stud 14. being screwed down,'whereupon the tool will be securely held in position for operation upon the work.

The preferred embodiment of the invention is disclosed in the drawings and set.

forth in the specification, but it will be understood that any modifications within the scope of the claims may be made in the construction without departing from the4 principle of the invention or sacrificing any of its advantages.

. What is claimed is: 1. A tool holder comprising a shank having a head thereon, a reversible clamp-f In operation the clamping member C isv adjusted upon the tool to be clamped which ing member adjustably mounted on said head, and blocks on the opposed faces ofv the clamping member for supporting it in position to facilitate the insertionl of a tool v and to balance the other end of the clamp When a tool is in the holder, said blocks being ofdifi'erent sizes to adapt the clamp to be used with different sized tools. l

2. A tool holder comprising a shank having a head, a clampingmemberadjustablyy mounted on said head, and oppositely projecting means on the opposed faces of the clamping member for'supporting said member in position to facilitate the insertion ofa tool and to balance the other end ofthe clamp When `a tool is inthe holder and adapting the clamp to be reversed.

3. Atool holder comprising a shank having a serrated head, 'a reversibleclamping member, a stud extending through vsaid member and engaging said head foradjustfV ing the clamping member'vvithfrespect to head von the shank, one face of the head provided With serrations, a reversible clamping 'member, a studV extending through the' clamping member and engaging in the head for adjusting the clamping member with respect to a'tool, and a `pair of blocks on'the clampingrfnember and extending in reverse directions to each other from opposite ends of the clamping member for supportingthe same in position to facilitate @the insertion In testimony Whereof,1` afj; my signature p hereto. Y y

` CLYDE SHEPARDSON. 

